collapse navbar on higher width

style.css

@media (min-width: 768px) and (max-width: 1175px) {
  .navbar-collapse.collapse {
    display: none !important;
  }
  .navbar-collapse.collapse.in {
    display: block !important;
  }
  .navbar-header .collapse, .navbar-toggle {
    display:block !important;
  }
  .navbar-header {
    float:none;
  }
}